TWM599905U - Gas leakage sensing device - Google Patents

Abstract

The invention provides a gas leakage sensing device, which includes a gas conduit, a liquid storage tank and a bubble sensing element; the gas conduit guides the leaking gas of industrial equipment into the liquid of the liquid storage tank through an exhaust port. Air bubbles, a monitoring part equipped with a bubble sensing element is formed on the wall of the liquid storage tank. The height of the monitoring part from the liquid surface is less than the height of the exhaust port from the liquid surface, and the bubble sensing element detects Know the size of the bubbles generated in the liquid, the number of generations, and the frequency of floating, and then obtain the flow and volume of the leaking gas, so as to improve the accuracy of sensing the leaking gas.

Description

Gas leakage sensing device

The new model relates to gas detection technology, in particular to a gas leakage sensing device.

Generally, there are process gases in industrial equipment such as heat exchange, boilers, heat treatment, gas or exhaust gas treatment. Most of the process gases have a specific pressure and are guided or guided by structural elements such as pipes or cabins. store.

Due to the existence of industrial equipment with process gas, after a period of use, process gas leakage is often prone to occur, which affects the proper rate of such industrial equipment. If the leaked process gas is toxic, it will pose a considerable threat to the environment, personnel health and even safety. Therefore, once the process gas in the industrial equipment leaks, it must be detected immediately to protect the properness of the equipment, environmental sanitation and public safety.

In addition, it is known that today there are industrial equipment with process gas, and most of them are equipped with gas pressure sensors, gas flowmeters and other measuring components in gas diversion pipes or gas storage tanks to detect whether the process gas is leaking or the flow rate of leakage , Volume, etc. However, the volume of gas is usually compressible. Therefore, in the prior art, it is difficult to obtain the accuracy when detecting the flow rate and volume when a small flow rate gas leaks, so it is urgent to improve it.

In view of this, the purpose of the present invention is to improve the problem that the existing industrial equipment has insufficient accuracy in detecting leaking gas. In order to improve this problem, the present invention mainly introduces the leaking gas into the liquid to generate bubbles, and uses a sensing element to observe the size of the bubbles and their floating frequency per unit time, and then refine Accurately check the leakage gas flow, volume and other data.

To this end, the present invention provides a gas leakage sensing device in its implementation. Its structural means include: a gas conduit, a liquid storage tank, and a relative configuration feature of a bubble sensing element. Wherein, the gas conduit is used to guide the leaking gas of an industrial equipment, and the gas conduit has an inlet end for receiving the leaked gas and an exhaust port for discharging the leaked gas; the liquid storage tank is filled with liquid, and the liquid With a liquid level, the exhaust port is implanted in the liquid of the liquid storage tank so that the leaked gas can be introduced into the liquid of the liquid storage tank to generate bubbles; at the same time, a monitor is formed on the tank wall of the liquid storage tank The monitoring portion is equipped with a bubble sensing element, the height of the monitoring portion from the liquid surface is less than the height of the exhaust port from the liquid surface, and the bubble sensing element is driven to sit between the liquid surface and the exhaust port, Furthermore, the bubble sensing element can be used to detect the size, the number of bubbles and the frequency of the bubbles generated in the liquid, so as to obtain data such as the flow rate and volume of the leaking gas.

In another implementation, a communicating hole below the liquid level is formed on the wall of the liquid storage tank, and the exhaust port is implanted in the liquid in a manner of connecting the communicating hole.

In another implementation, the tank wall of the liquid storage tank is also branched with a manifold that diverts the liquid and is lower than the liquid level. The pipe diameter of the manifold is smaller than the width of the liquid storage tank, and the A communication hole lower than the liquid level is formed on the tank wall of the manifold, the exhaust port is implanted in the liquid in a manner of connecting the communication hole, and the monitoring part is located on the branch of the liquid storage tank. On the wall of the manifold.

Furthermore, a water pumping motor is placed in the liquid of the liquid storage tank, and the water pumping motor has a water pumping port connected to or adjacent to the corresponding communicating hole to provide high-pressure liquid to be introduced into the manifold.

In the above implementation, the bubble sensing element can be an ultrasonic sensor or a visual device equipped with a charge-coupled element; when the bubble sensing element is a visual device, the monitoring part can provide the visual device to see through the liquid The transparent feature of the bubble.

According to the above-mentioned structural configuration means, the technical effect that the present invention can achieve is: by detecting the size, number and floating frequency of bubbles generated in the liquid, data such as the flow rate and volume of the leaking gas can be obtained sensitively and accurately.

In addition, the relevant technical details on which the present invention can be implemented will be described in the subsequent implementation modes and drawings.

10: Gas conduit

11: Inlet end

12: Exhaust port

20: Reservoir

21, 21a: Monitoring Department

22, 22a: connecting hole

23: Manifold

30: Bubble sensing element

31: Ultrasonic sensor

32: Visualizer

40: Leaking gas

41: Bubble

50: liquid

51: Liquid level

60: Pumping motor

61: water intake

62: Kap Shui Mou

h1, h2: height

D: pipe diameter

W: width

Figure 1 is a sectional view of the configuration of the first embodiment of the present invention.

Figure 2 is a sectional view of the configuration of the second embodiment of the present invention.

Figure 3 is a sectional view of the configuration of the third embodiment of the present invention.

In order to fully illustrate the feasibility of the gas leakage sensing device provided by the present invention, firstly, referring to Figure 1, the first embodiment of the present invention is disclosed, and it is explained that the sensing device consists of at least a gas conduit 10 and a liquid storage tank. 20 and a bubble sensing element 30 are configured. among them:

The function of the gas conduit 10 is to guide the leaking gas 40 of an industrial equipment, which can be a heat exchange equipment with process gas, a boiler, a heat treatment equipment, a gas equipment or an exhaust gas treatment equipment, etc. According to common knowledge, in order to prevent the leakage of process gas, these industrial equipment usually install diversion leaking gas in the diversion pipeline that diverts the process gas or the pipeline interface of the gas storage tank, the hatch cover interface, etc. The gas conduit 10 at 40 prevents the process gas from leaking into the atmosphere. Therefore, the gas duct 10 has an air inlet 11 for receiving the leakage gas 40 and an exhaust port 12 for discharging the leakage gas 40.

The liquid storage tank 20 may be surrounded by a transparent or opaque tank wall, so that the liquid storage tank 20 is connected to the atmosphere and is filled with a liquid 50, and the liquid level 51 of the liquid 50 can be formed in the liquid storage tank 20; the liquid 50 can be It is water or other oil or solvent that does not affect the formation and floating of the bubbles 41. In different implementation occasions, the liquid surface 51 of the liquid 50 may also be formed in other liquid tanks or catheter bodies that are connected to the liquid storage tank 20. The exhaust port 12 of the gas conduit 10 must be implanted in the liquid 50 of the liquid storage tank 20 in order to guide the leaking gas 40 to generate bubbles 41 in the liquid 50 of the liquid storage tank 20.

Furthermore, a monitoring part 21 is formed on the wall of the liquid storage tank 20. In essence, the monitoring part 21 is used for assembling or disposing the air bubble sensing element 30. And the height h1 of the monitoring part 21 from the liquid surface 51 must be less than the height h2 of the exhaust port 12 from the liquid surface 51 (that is, h1<h2); to put it another way, at the height from the ground, the monitoring part 21 is located opposite Between the higher liquid level 51 and the relatively lower exhaust port 12; the bubble sensing element 30 on the monitoring part 21 can conveniently and continuously monitor whether there are bubbles 41 in the liquid 50 and the size, quantity and Floating frequency.

In the implementation shown in FIG. 1, the bubble sensing element 30 can be an ultrasonic sensor 31 or a visual device 32 equipped with a charge coupled device (CCD). These bubble sensing elements 30 can be easily selected. The ground is arranged on the monitoring part 21 of the tank wall of the liquid storage tank 20 by assembling means such as locking, pasting or buckling. When the bubble sensing element 30 is an ultrasonic sensor 31, the monitoring part 21 may be transparent or opaque; the ultrasonic sensor 31 can penetrate transparent or opaque monitoring by virtue of the ultrasonic waves it generates The portion 21 (formed by the tank wall of the liquid storage tank 20) senses the bubbles 41 in the liquid 50 of the liquid storage tank 20. In addition, when the bubble sensing element 30 is a visualizer 32, the monitoring part 21 must be transparent, so as to provide the visualizer 32 through the transparent monitoring part 21 (formed by the tank wall of the reservoir 20) to see through the storage Bubbles 41 in the liquid 50 of the liquid tank 20.

Please continue to refer to FIG. 2 to disclose the second embodiment of the present invention, which illustrates that a communicating hole 22 can be formed on the wall of the liquid storage tank 20, and the communicating hole 22 must be lower than the liquid level 51 in order to provide the gas The exhaust port 12 of the duct 10 can be connected to the communicating hole 22 and then implanted in the liquid 50, so that the gas duct 10 can guide the leaking gas 40 to generate bubbles 41 in the liquid 50 of the liquid storage tank 20; Otherwise, the rest of the implementation details are the same as the above embodiment. .

Please continue to refer to FIG. 3, revealing the third embodiment of the present invention, which illustrates that the tank wall of the liquid storage tank 20 is further connected or formed with a manifold 23, and the manifold 23 is used to divert the liquid storage. The liquid 50 in the tank 20 enters, so that the manifold 23 can be lower than the liquid level 51; in addition, the pipe diameter D of the manifold 23 can be smaller than the width W of the liquid storage tank (that is, D<W), and the manifold 23 Both ends of the nozzle can be implemented in a form that communicates with the liquid storage tank 20, so that the liquid 50 can flow in the manifold 23; the communicating hole 22a in the second embodiment described above can be formed in the manifold in this embodiment. On the groove wall of the tube 23, and the communication The hole 22a must also be lower than the liquid level 51, so that the exhaust port 12 of the gas conduit 10 is connected to the communicating hole 22a and then implanted in the liquid 50; further, the monitoring in the first and second embodiments described above The part 21a is located on the pipe wall of the manifold 23 in this embodiment; other than that, the rest of the implementation details are the same as the above embodiment.

Please refer to FIG. 3 again to illustrate that in the third embodiment, the liquid 50 of the liquid storage tank 20 is placed with a pumping motor 60, the pumping motor 60 has a water intake 61 and a pumping port 62; the water intake 61 The liquid is captured in the liquid 50, and is relatively connected to or adjacent to the corresponding communicating hole 22 or 22a through the water suction port 62, so as to drive the high-pressure liquid 50 into the manifold 23 to prevent the liquid 50 in the manifold 23 from generating vacuum or liquid. The insufficient amount affects the generation of bubbles 41.

To sum up, the present invention is able to detect the generation of bubbles 41 in the liquid 50, as well as the size, quantity, and floating of bubbles 41, by virtue of the penetration sensing capabilities of ultrasonic waves and the recognition capabilities of charge coupled devices (CCD). In terms of frequency, it can produce a keen and accurate detection function, and the above-mentioned bubble sensing element 30 is also convenient to transmit the signal of detecting the bubble to the corresponding signal control unit, and then accurately obtain the flow rate and volume of the leaking gas 40. Data; it can be seen that this new model is a technology that is fully applicable in the industry.

The above embodiments only express the preferred embodiments of the present invention, but they should not be interpreted as limiting the scope of the present invention. Therefore, this new model should be subject to the content of the claims defined in the scope of the patent application.

10: Gas conduit

11: Inlet end

12: Exhaust port

20: Reservoir

21: Monitoring Department

30: Bubble sensing element

31: Ultrasonic sensor

32: Visualizer

40: Leaking gas

41: Bubble

50: liquid

51: Liquid level

h1, h2: height

Claims (7)

A gas leakage sensing device includes: A gas conduit for guiding the leaking gas of an industrial equipment, the gas conduit having an inlet end for receiving the leaking gas, and an exhaust port for discharging the leaking gas; and A liquid storage tank filled with liquid, the liquid has a liquid level, and the exhaust port is implanted in the liquid of the liquid storage tank; Wherein, a monitoring part is formed on the wall of the liquid storage tank, and the monitoring part is equipped with a bubble sensing element, and the height of the monitoring part from the liquid surface is smaller than the height of the exhaust port from the liquid surface. The gas leakage sensing device according to claim 1, wherein the bubble sensing element is located between the liquid surface and the exhaust port. The gas leakage sensing device according to claim 2, wherein a communicating hole below the liquid level is formed on the wall of the liquid storage tank, and the exhaust port is implanted in the communicating hole in a manner connecting Inside the liquid. The gas leakage sensing device as described in claim 2, wherein the tank wall of the liquid storage tank is also branched with a manifold that guides the liquid and is lower than the liquid level, and the tank wall of the manifold is A communication hole lower than the liquid level is formed, the exhaust port is implanted in the liquid by connecting the communication hole, and the monitoring part is located on the pipe wall of the manifold formed by the branch of the liquid storage tank on. The gas leakage sensing device according to claim 4, wherein a pumping motor is placed in the liquid of the liquid storage tank, the pumping motor has a pumping port, the pumping port is connected to or adjacent to the corresponding communicating hole, and the pumping port provides The high-pressure liquid is introduced into the manifold. The gas leakage sensing device according to any one of claims 1 to 5, wherein the bubble sensing element is an ultrasonic sensor. The gas leakage sensing device according to any one of claims 1 to 5, wherein the bubble sensing element is a visual device equipped with a charge-coupled element, and the monitoring part is provided to provide the visual device to see through bubbles in the liquid The transparent feature.

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